摘要
简要回顾了概率积分法的产生与发展,在肯定概率积分法的历史作用和优势的同时,指出概率积分法的理论依据——随机介质理论,既不符合煤矿开采"层、块、散体"复杂岩层介质的实际,也未反映"原岩应力、采矿扰动、平衡"的采动力学过程;指出需要对概率积分法重新定位,并提出了对采煤沉陷机理进一步研究的设想,即把力学与位移学结合起来,建立"应力—应变—位移"的综合模型和采用数值计算方法进行采煤沉陷计算。
The paper reviewed generation and development of probability integral method, historical function and advantage of proba-bility integral method were affirmed first, and then pointed out that theoretical basis of probability integral method was stochastic medi-um theory, it neither fit the complicated rock strata medium 'layer, block, granular' of coal mining nor reflected mining dynamic process 'in-situ stress, mining disturbance, balance' .The paper pointed out that probability integral method should be pondered a-gain, and coal mine subsidence principle should study future, it was mining subsidence calculation should base on comprehensive model of 'stress-strain-displacement' and numerical method that based on mechanics and displacement theory.
出处
《煤矿开采》
北大核心
2016年第2期7-9,102,共4页
Coal Mining Technology
关键词
采煤沉陷计算
概率积分法
力学本质
mining subsidence calculation
probability integral method
mechanical essence
